Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	problem in communicating to the GPIB device with ASYN4-6
From:	zhangdemin99 <[email protected]>
To:	tech-talk <[email protected]>
Date:	Thu, 2 Aug 2007 18:51:29 +0800 (CST)

Dear all,

There are something wrong when I run the application, and it says:

#!../../bin/linux-x86/PSM6003
##You may have to change PSM6003 to something else
##everywhere it appears in this file
#<envPaths
##Register all support components
dbLoadDatabase("../../dbd/PSM6003dbd",0,0)
PSM6003_registerRecordDeviceDriver(pdbbase)
##Load record instances
dbLoadRecords("../../db/psm6003.db","P=PSM6003:,R=,L=0,A=0")

drvAsynSerialPortConfigure("L0","/dev/ttyS0",0,0,0)

asynSetOption("L0",-1,"baud","9600")

asynSetOption("L0",-1,"bits","8")

asynSetOption("L0",-1,"parity","none")

asynSetOption("L0",-1,"stop","1")

asynSetOption("L0",-1,"clocal","Y")

asynSetOption("L0",-1,"crtscts","N")

asynSetTraceMask("L0",-1,0x9)

asynSetTraceIOMask("L0",-1,0x2)
iocInit()
Starting iocInit
############################################################
##EPICS R3.149-$R3-14-9-prel $2006/11/20 21:09:36$
##EPICS Base built May 13 2007
############################################################

The CA server's beacon address list was empty after initilization?

iocInit:All initilization complete

##start any sequence programs

#seq sncPSM6003,"user=zhm"

epics>2007/08/02 16:18:38.422 /dev/ttyS0 write 15

DISPlay:TEXT?LF

2007/08/02 16:18:48.422 display-query read status ""nin 0

2007/08/02 16:18:48.422 display-query error.

I have declared the command array as follows:

{&DSET_SO,GPIBWRITE,IB_Q_LOW,0,"DISPlay:TEXT \"%S""EOSNL,0,200,0,0,0,0,0,EOSNL},

{&DSET_SI,GPIBREAD,IB_Q_LOW,"DISPlay:TEXT?"EOSNL,0,0,200,readString,0,0,0,0,EOSNL}

static int readString(gpibDpvt *pdpvt,int P1, int P2,char **P3)